MESON Chess Problem Database

Problem Display
PID: 43072 (2b2B2/n1p5/2k5/K3Pp2/2N5/2R5/2rR4/1Q2n3 w - - 0 1)

Mansfield, Comins

Geneva Chess Club Bulletin, 1970

2b2B2/n1p5/2k5/K3Pp2/2N5/2R5/2rR4/1Q2n3

#2

7 + 7

4054 Complete Mansfield/III 1999

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2+
      • 2.Sa3#
    • 1...Sb5
      • 2.Qxb5#
  • Tries
    • 1.Rd6+?
      • 1...Kc5
        • 2.Qb4#
      • 1...cxd6!
  • Keys
    • 1.e6!
      • threat
        • 2.Se5#
      • 1...Ra2+
        • 2.Sa3#
      • 1...Rxd2
        • 2.Se3#
      • 1...Rb2
        • 2.Sd6#
      • 1...Sd3
        • 2.Qh1#
      • 1...Sb5
        • 2.Qxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(b);CHECK,N_GUARD::R(C)+S(D)
    • S(e);N_GUARD::QAB1(A),XS(e)
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • K(d);P-FLIGHT::QAB1(A)
      • Refutation
        • P(f);XR(B)
  • Actual
    • P(F);
    • Threat
      • R(C)+S(D),DCHECK
    • Vars
      • R(b);CHECK,N_GUARD::R(C)+S(D)
      • R(b);N_GUARD,XR(B)::R(C)+S(D)
      • R(b);N_GUARD::R(C)+S(D)
      • S(a);OGATE::QAB(A)
      • S(e);N_GUARD::QAB1(A),XS(e)
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